Abstract

Novel methylenephosphophosphonate analogues of mycophenolic adenine dinucleotide (MAD) have been prepared as potential inhibitors of IMP dehydrogenase. A coupling of the mycophenolic (hydroxymethyl)-phosphonate 6 with the phosphitylated adenosine analogue 11 followed by oxidation and deprotection afforded the phosphophosphonate 8. A similar coupling between adenosine (hydroxymethyl)phosphonate 10 and phosphitylated mycophenolic alcohol 5 gave the corresponding phosphophosphonate 13. Both 8 and 13 (Ki = 20-87 nM) were found to be the most potent cofactor type inhibitors of IMP dehydrogenase.

abstract = "Novel methylenephosphophosphonate analogues of mycophenolic adenine dinucleotide (MAD) have been prepared as potential inhibitors of IMP dehydrogenase. A coupling of the mycophenolic (hydroxymethyl)-phosphonate 6 with the phosphitylated adenosine analogue 11 followed by oxidation and deprotection afforded the phosphophosphonate 8. A similar coupling between adenosine (hydroxymethyl)phosphonate 10 and phosphitylated mycophenolic alcohol 5 gave the corresponding phosphophosphonate 13. Both 8 and 13 (Ki = 20-87 nM) were found to be the most potent cofactor type inhibitors of IMP dehydrogenase.",

N2 - Novel methylenephosphophosphonate analogues of mycophenolic adenine dinucleotide (MAD) have been prepared as potential inhibitors of IMP dehydrogenase. A coupling of the mycophenolic (hydroxymethyl)-phosphonate 6 with the phosphitylated adenosine analogue 11 followed by oxidation and deprotection afforded the phosphophosphonate 8. A similar coupling between adenosine (hydroxymethyl)phosphonate 10 and phosphitylated mycophenolic alcohol 5 gave the corresponding phosphophosphonate 13. Both 8 and 13 (Ki = 20-87 nM) were found to be the most potent cofactor type inhibitors of IMP dehydrogenase.

AB - Novel methylenephosphophosphonate analogues of mycophenolic adenine dinucleotide (MAD) have been prepared as potential inhibitors of IMP dehydrogenase. A coupling of the mycophenolic (hydroxymethyl)-phosphonate 6 with the phosphitylated adenosine analogue 11 followed by oxidation and deprotection afforded the phosphophosphonate 8. A similar coupling between adenosine (hydroxymethyl)phosphonate 10 and phosphitylated mycophenolic alcohol 5 gave the corresponding phosphophosphonate 13. Both 8 and 13 (Ki = 20-87 nM) were found to be the most potent cofactor type inhibitors of IMP dehydrogenase.